Update to 7-Zip Version 21.02

CPP/Common/MyTypes.h

@@ -32,4 +32,15 @@ struct CBoolPair
   cls(const cls &); \
   cls &operator=(const cls &);
 
+class CUncopyable
+{
+protected:
+  CUncopyable() {} // allow constructor
+  // ~CUncopyable() {}
+CLASS_NO_COPY(CUncopyable)
+};
+
+#define MY_UNCOPYABLE  :private CUncopyable
+// #define MY_UNCOPYABLE
+
 #endif